JDK-8185538 : JDK 9 is really slow initialising some OTF/CFF fonts.
- Type: Bug
- Component: client-libs
- Sub-Component: 2d
- Affected Version: 8u152,9
- Priority: P2
- Status: Resolved
- Resolution: Fixed
- Submitted: 2017-07-28
- Updated: 2020-02-03
- Resolved: 2017-10-17
The Version table provides details related to the release that this issue/RFE will be addressed.
Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.
To download the current JDK release, click here.
Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.
To download the current JDK release, click here.
| JDK 10 | JDK 7 | JDK 8 |
|---|---|---|
10 b29Fixed  |
7u271Fixed | 8u231Fixed |
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Description
Download any Noto CJK Font and run this program against it
import java.io.File;
import java.awt.Font;
import java.awt.font.FontRenderContext;
public class SlowFontInit {
public static void main(String[] args) throws Exception {
String name = "NotoSansCJKjp-Regular.otf";
if (args.length > 0) {
name = args[0];
}
Font f = Font.createFont(Font.TRUETYPE_FONT, new File(name));
FontRenderContext frc = new FontRenderContext(null, false, false);
long t0 = System.currentTimeMillis();
f.getStringBounds(" ", frc);
long t1 = System.currentTimeMillis();
System.out.println((t1-t0)+"ms. "+ f.getFontName());
}
}
$ java SlowFontInit
1802ms. Noto Sans CJK JP Regular
Almost 2 seconds ..
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